116 things that cause CANCER - according to World Health Organization experts

The 116 things that cause CANCER - according to World Health Organization experts

Bacon, burgers and sausages were this week deemed to be as big a cancer threat as cigarettes, according to global health chiefs.

The warning saw processed meat added to the list of items classified as carcingogenic to humans by the World Health Organisation. 

It means dietary favourites, including salami, chorizo and smoked ham, rank alongside arsenic and asbestos, when it comes to the potential cancer risk.  

Officials said just 50g of processed meat a day – less than one sausage – increases the risk of bowel cancer by almost a fifth.

Twenty-two experts at the WHO's International Agency for Research on Cancer, from 10 countries, took the decision after reviewing more than 800 studies that investigated the links between red meat and processed meat and various different types of cancer.

Processed meat was classified as carcinogenic, based on sufficient evidence in humans that consumption causes specifically colorectal or bowel cancer, they concluded. 

The classification of red meat as 'probably carcinogenic to humans' was observed mainly in relation to colorectal cancer, but links were also seen for pancreatic and prostate cancer.

Here, we reveal all those things, which are classified alongside processed meat in the IARC's group one, carcinogenic to humans category - those that definitely cause cancer:

1. Tobacco smoking

2. Sunlamps and sunbeds

3. Aluminium production

4. Arsenic in drinking water

5. Auramine production

6. Boot and shoe manufacture and repair

7. Chimney sweeping

8. Coal gasification

9. Coal tar distillation

10. Coke (fuel) production

11. Furniture and cabinet making

12. Haematite mining (underground) with exposure to radon

13. Secondhand smoke

14. Iron and steel founding

15. Isopropanol manufacture (strong-acid process)

16. Magenta dye manufacturing

17. Occupational exposure as a painter

18. Paving and roofing with coal-tar pitch

19. Rubber industry

20. Occupational exposure of strong inorganic acid mists containing sulphuric acid

21. Naturally occurring mixtures of aflatoxins (produced by funghi)

22. Alcoholic beverages

23. Areca nut - often chewed with betel leaf

24. Betel quid without tobacco

25. Betel quid with tobacco

26. Coal tar pitches

27. Coal tars

28. Indoor emissions from household combustion of coal

29. Diesel exhaust

30. Mineral oils, untreated and mildly treated

31. Phenacetin, a pain and fever reducing drug

32. Plants containing aristolochic acid (used in Chinese herbal medicine)

33. Polychlorinated biphenyls (PCBs) - widely used in electrical equipment in the past, banned in many countries in the 1970s

34. Chinese-style salted fish

35. Shale oils

36. Soots

37. Smokeless tobacco products

38. Wood dust

39. Processed meat

40. Acetaldehyde

41. 4-Aminobiphenyl

42. Aristolochic acids and plants containing them

43. Asbestos

44. Arsenic and arsenic compounds

45. Azathioprine

46. Benzene

47. Benzidine

48. Benzo[a]pyrene

49. Beryllium and beryllium compounds

50. Chlornapazine (N,N-Bis(2-chloroethyl)-2-naphthylamine)

51. Bis(chloromethyl)ether

52. Chloromethyl methyl ether

53. 1,3-Butadiene

54. 1,4-Butanediol dimethanesulfonate (Busulphan, Myleran)

55. Cadmium and cadmium compounds

56. Chlorambucil

57. Methyl-CCNU (1-(2-Chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea; Semustine)

58. Chromium(VI) compounds

 59. Ciclosporin

60. Contraceptives, hormonal, combined forms (those containing both oestrogen and a progestogen)

61. Contraceptives, oral, sequential forms of hormonal contraception (a period of oestrogen-only followed by a period of both oestrogen and a progestogen)

62. Cyclophosphamide

63. Diethylstilboestrol

64. Dyes metabolized to benzidine

65. Epstein-Barr virus

66. Oestrogens, nonsteroidal

67. Oestrogens, steroidal

68. Oestrogen therapy, postmenopausal

69. Ethanol in alcoholic beverages

70. Erionite

71. Ethylene oxide

72. Etoposide alone and in combination with cisplatin and bleomycin

73. Formaldehyde

74. Gallium arsenide

75. Helicobacter pylori (infection with)

76. Hepatitis B virus (chronic infection with)

77. Hepatitis C virus (chronic infection with)

78. Herbal remedies containing plant species of the genus Aristolochia

79. Human immunodeficiency virus type 1 (infection with)

80. Human papillomavirus type 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59 and 66

81. Human T-cell lymphotropic virus type-I

82. Melphalan

83. Methoxsalen (8-Methoxypsoralen) plus ultraviolet A-radiation

84. 4,4'-methylene-bis(2-chloroaniline) (MOCA)

85. MOPP and other combined chemotherapy including alkylating agents

86. Mustard gas (sulphur mustard)

87. 2-Naphthylamine

88. Neutron radiation

89. Nickel compounds

90. 4-(N-Nitrosomethylamino)-1-(3-pyridyl)-1-butanone (NNK)

91. N-Nitrosonornicotine (NNN)

92. Opisthorchis viverrini (infection with)

93. Outdoor air pollution

94. Particulate matter in outdoor air pollution

95. Phosphorus-32, as phosphate

96. Plutonium-239 and its decay products (may contain plutonium-240 and other isotopes), as aerosols

97. Radioiodines, short-lived isotopes, including iodine-131, from atomic reactor accidents and nuclear weapons detonation (exposure during childhood)

98. Radionuclides, α-particle-emitting, internally deposited

99. Radionuclides, β-particle-emitting, internally deposited

100. Radium-224 and its decay products

101. Radium-226 and its decay products

102. Radium-228 and its decay products

103. Radon-222 and its decay products

104. Schistosoma haematobium (infection with)

105. Silica, crystalline (inhaled in the form of quartz or cristobalite from occupational sources)

106. Solar radiation

107. Talc containing asbestiform fibres

108. Tamoxifen

109. 2,3,7,8-tetrachlorodibenzo-para-dioxin

110. Thiotepa (1,1',1'-phosphinothioylidynetrisaziridine)

111. Thorium-232 and its decay products, administered intravenously as a colloidal dispersion of thorium-232 dioxide

112. Treosulfan

113. Ortho-toluidine

114. Vinyl chloride

115. Ultraviolet radiation

116. X-radiation and gamma radiation

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